基于电网安全稳定运行前提下的梯级水电站优化调度新探讨

优先和大力发展水电是调整能源结构和可持续性发展的重要措施之一,梯级水电站由于其经济效益显著受到极大的关注。随着水力资源的不断开发,电网结构日益复杂,水电关系必将越来越密切,就梯级水电站的优化调度问题,立足于电网稳定安全,提出了先电网优化再水库调度优化的调度方式。基于四川南充电网梯级水电站,通过PSASP系统进行了不同电网运行方式下的潮流计算,较好地验证了这一方案的提出。

New Discussion on Optimal Dispatching of Cascade Hydropower Stations Based on Safe and Stable Operation of Power Grid

Giving priority to the development of hydropower is one of the important measures for adjusting the energy structure and the sustainable development.Cascade hydropower station has been under the great deal of concern because of its significant economic benefits.With the continuous development of water resources and the increasing complexity of the structure of power grid,the relationship between water and electricity will become closer and closer.Aiming at the optimal dispatching of cascade hydropower station,a new dispatching method is proposed which considers power grid firstly and hydropower secondly based on the safety and stability of power grid.Through PSASP system,the calculations of power flow in different operation modes are carried out based on cascade hydropower stations in Nanchong Power Grid of Sichuan,which has verified this proposal well.